78806361fd
## Summary This PR builds on the changes in #16220 to pass a target Python version to the parser. It also adds the `Parser::unsupported_syntax_errors` field, which collects version-related syntax errors while parsing. These syntax errors are then turned into `Message`s in ruff (in preview mode). This PR only detects one syntax error (`match` statement before Python 3.10), but it has been pretty quick to extend to several other simple errors (see #16308 for example). ## Test Plan The current tests are CLI tests in the linter crate, but these could be supplemented with inline parser tests after #16357. I also tested the display of these syntax errors in VS Code:   --------- Co-authored-by: Alex Waygood <alex.waygood@gmail.com>
56 lines
1.3 KiB
Rust
56 lines
1.3 KiB
Rust
use ruff_python_ast::{PySourceType, PythonVersion};
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use crate::{AsMode, Mode};
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/// Options for controlling how a source file is parsed.
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///
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/// You can construct a [`ParseOptions`] directly from a [`Mode`]:
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///
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/// ```
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/// use ruff_python_parser::{Mode, ParseOptions};
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///
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/// let options = ParseOptions::from(Mode::Module);
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/// ```
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///
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/// or from a [`PySourceType`]
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///
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/// ```
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/// use ruff_python_ast::PySourceType;
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/// use ruff_python_parser::ParseOptions;
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///
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/// let options = ParseOptions::from(PySourceType::Python);
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/// ```
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#[derive(Clone, Debug)]
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pub struct ParseOptions {
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/// Specify the mode in which the code will be parsed.
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pub(crate) mode: Mode,
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/// Target version for detecting version-related syntax errors.
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pub(crate) target_version: PythonVersion,
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}
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impl ParseOptions {
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#[must_use]
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pub fn with_target_version(mut self, target_version: PythonVersion) -> Self {
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self.target_version = target_version;
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self
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}
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}
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impl From<Mode> for ParseOptions {
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fn from(mode: Mode) -> Self {
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Self {
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mode,
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target_version: PythonVersion::default(),
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}
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}
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}
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impl From<PySourceType> for ParseOptions {
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fn from(source_type: PySourceType) -> Self {
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Self {
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mode: source_type.as_mode(),
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target_version: PythonVersion::default(),
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}
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}
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}
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